CN207178327U - Injector - Google Patents
Injector Download PDFInfo
- Publication number
- CN207178327U CN207178327U CN201721148576.8U CN201721148576U CN207178327U CN 207178327 U CN207178327 U CN 207178327U CN 201721148576 U CN201721148576 U CN 201721148576U CN 207178327 U CN207178327 U CN 207178327U
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- CN
- China
- Prior art keywords
- outlet
- inlet tube
- pipe
- injector
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000003780 insertion Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000005119 centrifugation Methods 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses a kind of injector, belong to exhaust apparatus technical field, the branch pipe communicated including injector body and with centrifugation pump housing, the injector body is provided with the inlet tube and outlet to interpenetrate, inlet tube extension insertion outlet-pipe inlet end, annular gap between the inlet tube extension and outlet-pipe inlet end forms chamber, and the inlet tube and outlet communicate with chamber, and the branch pipe is arranged on outlet-pipe inlet side wall and and chamber.A kind of injector provided by the utility model, when dynamic medium high speed is by injector body, make to form local decompression in chamber, gas in centrifugation pump housing is saved bit by bit by branch pipe emptying, water enters in centrifugation pump housing under atmospheric pressure effect and reaches its entry condition, and then centrifugal pump is avoided to cause the failures such as its big, not water outlet of vibration so that the centrifugal pump course of work is more smooth because there is gas row not go out in cavity.
Description
Technical field
The utility model belongs to exhaust apparatus technical field, is to be related to a kind of injector more specifically.
Background technology
Centrifugal pump is the machinery for conveying liquid or being pressurized liquid, when water level is less than the exhaust outlet of centrifugal pump, is needed
By gas discharge in centrifugation pump housing, the failures such as big, the not water outlet of centrifugal pump vibration otherwise can be caused.In order to avoid case above
Occur, traditional way has following two：The first：Bottom valve is installed in suction piping bottom, fills it before starting centrifugal pump
Water.The shortcomings that such a method is：Phenomena such as bite, leak, often occurs in use for bottom valve；Meanwhile bottom valve can increase from
Heart pump suction resistance, so increase centrifugation pump work when resistance, cause centrifugal pump service life shorten and electric power resource waste.The
Two kinds：Operate to form negative pressure by auxiliary pumps such as vavuum pumps, centrifugal pump steam vent is connected with vavuum pump, made in centrifugation pump housing
Gas is forcefully discharged.The shortcomings that such a method is：Vacuum pump failure rate is high, maintenance difficulty is big.
Utility model content
The purpose of this utility model is to provide a kind of injector, to solve to have the centrifugal pump course of work in the prior art
In run into water level and be less than its exhaust outlet, centrifuging gas in pump housing can not discharge, the technical problem for causing centrifugal pump not start.
To achieve the above object, the technical solution adopted in the utility model is：A kind of injector, including injector body and
The branch pipe communicated with centrifugation pump housing, the injector body are provided with the inlet tube and outlet to interpenetrate, inlet tube extension
Portion insertion outlet-pipe inlet end, the annular gap between the inlet tube extension and outlet-pipe inlet end form chamber, it is described enter
Mouth pipe and outlet communicate with chamber, and the branch pipe is arranged on outlet-pipe inlet side wall and and chamber.
Further, the inlet tube and outlet are split-type structural, and the outlet-pipe inlet end is provided with internal thread, institute
The root for stating inlet tube extension is provided with matched external screw thread.
Further, the inlet tube extension is coniform that inlet tube arrival end is tubulose and endoporus is screwed hole,
The endoporus of the inlet tube extension is taper hole.
Further, the outer wall of the outlet is stepped that outlet-pipe inlet end external diameter exports more than outlet
External diameter is held, the aperture at the outlet-pipe inlet end is more than the aperture of the outlet port of export, and the outlet-pipe inlet end includes straight hole
Section and taper hole section, the straight hole section are transitioned into the endoporus of the outlet port of export by taper hole section, and the straight hole sector hole footpath is more than
The diameter of bore of the mouth pipe port of export, between the inwall and inlet tube extension outer wall of the outlet spout arrival end straight hole section and taper hole section
Annular gap formed chamber.
Further, the aperture of the outlet port of export is horn-like.
Further, the branch pipe is connected by valve one with centrifugation pump exhaust inlet.
Further, the inlet tube arrival end passes through valve two and the outlet of dynamic medium efferent duct.
A kind of beneficial effect of injector provided by the utility model is：Compared with prior art, the utility model one
Kind injector, when dynamic medium high speed is by injector body, make to form local decompression in chamber, saved bit by bit by branch pipe emptying
The gas in pump housing is centrifuged, water enters in centrifugation pump housing under atmospheric pressure effect and reaches its entry condition, and then avoids
Centrifugal pump causes the failures such as its big, not water outlet of vibration so that the centrifugal pump course of work is more because there is gas row not go out in cavity
It is smooth.
Brief description of the drawings
, below will be to embodiment or prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The required accompanying drawing used is briefly described in description, it should be apparent that, drawings in the following description are only that this practicality is new
Some embodiments of type, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation for the injector that the utility model embodiment provides；
Fig. 2 is the use state figure for the injector that the utility model embodiment provides；
In Fig. 1：1st, inlet tube, 1-1, inlet tube arrival end, 1-2, inlet tube extension, 2, chamber,
2-1, outlet-pipe inlet end, 2-2, the outlet port of export, 3, outlet, 4, branch pipe.
In Fig. 2：5th, injector body, 6, centrifugal pump, 7, valve one, 8, valve two.
Embodiment
In order that technical problem to be solved in the utility model, technical scheme and beneficial effect are more clearly understood, with
Lower combination drawings and Examples, the utility model is further elaborated.It is it should be appreciated that described herein specific real
Example is applied only to explain the utility model, is not used to limit the utility model.
Also referring to Fig. 1 and Fig. 2, now a kind of injector provided by the utility model is illustrated.A kind of injector,
The branch pipe 4 communicated including injector body 5 and with the cavity of centrifugal pump 6, the injector body 5 are provided with the inlet tube to interpenetrate
1 and outlet 2, inlet tube extension 1-2 insertion outlet-pipe inlet end 2-1, the inlet tube extension 1-2 and outlet-pipe inlet
The annular gap between 2-1 is held to form chamber 3, the inlet tube 1 and outlet 2 are communicated with chamber 3, and the branch pipe 4 is arranged on
Outlet-pipe inlet end 2-1 side walls and connected with chamber 3.Dynamic medium can be：Blast 0.2-0.8MPa or hydraulic pressure 0.2-
1.6MPa；Blast or hydraulic pressure are made to form negative pressure in chamber 3, will saved bit by bit using branch pipe 4 at a high speed by inlet tube 1 and outlet 2
Gas in the cavity of centrifugal pump 6 is extracted out so that the normal operation of centrifugal pump 6, improves operating efficiency.
Further, the inlet tube 1 and outlet 2 are split-type structural, and the outlet-pipe inlet end 2-1 is provided with interior spiral shell
Line, the root of the inlet tube extension 1-2 are provided with matched external screw thread.Outlet 2 and inlet tube 1 are connected by screw thread
Connect, it is convenient to dismantle, be easily operated, screw thread is adjusted by inlet tube 1, changes inlet tube 1 and the relative position of outlet 2, Jin Ergai
Become the negative pressure value of chamber 3；Negative pressure can reach -0.07MPa, can convey the liquid less than horizontal plane depth≤7 meter of centrifugal pump 6
Body.
Further, the inlet tube extension 1-2 is coniform that inlet tube arrival end 1-1 is tubulose and endoporus is spiral shell
Pit, the endoporus of the inlet tube extension 1-2 is taper hole.Cone structure can make dynamic medium air pressure or hydraulic pressure by import
Flow velocity is improved during pipe 1, and then changes the negative pressure value of chamber 3, gas in the cavity of centrifugal pump 6 is more quickly discharged.
Further, the outer wall of the outlet 2 is stepped that the outlet-pipe inlet end 2-1 external diameters are more than outlet
Port of export 2-2 external diameters, the aperture of the outlet-pipe inlet end 2-1 are more than outlet port of export 2-2 aperture, and the outlet enters
Mouth end 2-1 includes straight hole section and taper hole section, and the straight hole section is transitioned into outlet port of export 2-2 endoporus, institute by taper hole section
State the diameter of bore that straight hole sector hole footpath is more than outlet port of export 2-2.The descending change of the endoporus of outlet 2, helps to draw
Emitter body 5 faster empties the gas of the intracavitary of centrifugal pump 6 by branch pipe 4.
Further, the aperture of the outlet port of export 2-2 is horn-like.During work, outlet 2 is not easy to be blocked.
Further, the branch pipe 4 is connected by valve 1 with the exhaust outlet of centrifugal pump 6.During work, valve 1 can facilitate
Control injector body 5 is connected and disconnected from centrifugal pump 6.
Further, the inlet tube arrival end 1-1 passes through valve 28 and the outlet of dynamic medium efferent duct.Work
When making, the convenient control injector body 5 of valve 28 is connected and disconnected from the outlet of dynamic medium efferent duct.
During work, valve 1, valve 28 are opened, dynamic medium enters inlet tube 1 and with speed quickly from outlet
2 discharges, make to form negative pressure in chamber 3, vacuum magnitude can be adjusted by the screw thread of inlet tube 1；In the work of the negative pressure of chamber 3
Under, the gas in the cavity of centrifugal pump 6 arrives chamber 3 by valve 1, branch pipe 4, is discharged through outlet 2；Meanwhile water gradually enters
Enter in the cavity of centrifugal pump 6, after water is full of 6 cavity of centrifugal pump, starts centrifugal pump 6, be then shut off valve 1 and valve 28.
In summary, the utility model ejector structure is simple, convenient dismounting, simple to operate, and cost is cheap, close to " zero "
Safeguard, in conveying liquid or make large-scale promotion liquid supercharging field suitable for centrifugal pump and apply.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (7)
- A kind of 1. injector, it is characterised in that：Including injector body（5）With with centrifugal pump（6）The branch pipe that cavity communicates（4）, The injector body（5）Provided with the inlet tube to interpenetrate（1）And outlet（2）, inlet tube extension（1-2）Insertion outlet Tube inlet end（2-1）, the inlet tube extension（1-2）With outlet-pipe inlet end（2-1）Between annular gap formed chamber （3）, the inlet tube（1）And outlet（2）And chamber（3）Communicate, the branch pipe（4）It is arranged on outlet-pipe inlet end（2- 1）Side wall and and chamber（3）Connection.
- 2. injector according to claim 1, it is characterised in that：The inlet tube（1）And outlet（2）For split type knot Structure, the outlet-pipe inlet end（2-1）Aperture is provided with internal thread, the inlet tube extension（1-2）Root be provided with match somebody with somebody therewith The external screw thread of conjunction.
- 3. injector according to claim 1, it is characterised in that：The inlet tube extension（1-2）To be coniform, inlet tube Arrival end（1-1）For tubulose, the inlet tube extension（1-2）Endoporus be taper hole.
- 4. injector according to claim 1, it is characterised in that：The outlet（2）Outer wall be stepped, the outlet Tube inlet end（2-1）External diameter is more than the outlet port of export（2-2）External diameter, the outlet-pipe inlet end（2-1）Aperture be more than The mouth pipe port of export（2-2）Aperture, the outlet-pipe inlet end（2-1）Including straight hole section and taper hole section, the straight hole section passes through Taper hole section is transitioned into the outlet port of export（2-2）Endoporus, the straight hole sector hole footpath is more than the outlet port of export（2-2）Endoporus Diameter.
- 5. injector according to claim 4, it is characterised in that：The outlet port of export（2-2）Aperture to be horn-like.
- 6. according to any one of the claim 1-5 injectors, it is characterised in that：The branch pipe（4）Pass through valve one（7）With from Heart pump（6）Exhaust outlet connects.
- 7. injector according to claim 3, it is characterised in that：The inlet tube arrival end（1-1）Pass through valve two（8）With The outlet of dynamic medium efferent duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721148576.8U CN207178327U (en) | 2017-09-08 | 2017-09-08 | Injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721148576.8U CN207178327U (en) | 2017-09-08 | 2017-09-08 | Injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207178327U true CN207178327U (en) | 2018-04-03 |
Family
ID=61741876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721148576.8U Active CN207178327U (en) | 2017-09-08 | 2017-09-08 | Injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207178327U (en) |
-
2017
- 2017-09-08 CN CN201721148576.8U patent/CN207178327U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |